What are the pros and cons (briefly) on MP3 use at school?

I trust you will have looked at (listened to) at least some of the links suggested in the chapter section on "Using Existing Files." What stands out to you most (and why) of those links? How might you use it in your classes?

There also are suggestions for making podcasts in Chapter 3. Are there any suggestions that might be useful to you in the future? Why (or why not)?